摘要
介绍了近年来声发射技术在变压器局部放电测量方面的发展及应用情况、检测原理、系统结构以及传感器的灵敏度和抗干扰问题,并对几种定位理论及模式识别方法进行了总结,以了解电力变压器绝缘状况和预测故障,最后探讨了该方法在实用过程中的优缺点和今后的发展方向。
The present situation of detection of partial discharges in power transformers using acoustic emission technology is introduced, included in the paper are testing principle, system structure and sensors. Several locating theories and pattern recognition methods are outlined. Additionally, relative merits in practice and development direction of this method are discussed.
出处
《无损检测》
2004年第10期502-505,共4页
Nondestructive Testing
关键词
声发射
局部放电
定位
模式识别
Acoustic emission
Partial discharges
Locating method
Pattern recognition
